Insulation-rack.



No. 770,278. PATENTED SEPT. zo, 1904.

' J. E. ELETGHER.

NSULATION RACK.

APPLIOATION FILED MAY 14, 1904.

N0 MODEL.

Wlhesesi M y 'if l CLU Httowneg UNITED STATES Patented September 20,1904.

JOHN E. FLETCHER,

OE DAYTON. OHIO.

|NsuLATloN-RAGK.l i

SPECIFICATON forming part of Letters Patent No. 770,278, dated September'20, 1904.'

Application inea may 14, 1904.. serai No. 207,883. (No model.) 1.

To all whom, it may concern,.-

Beit known that I, JOHN R. FLETCHER, a. citizen of the United States,residing at Dayton, in the county of Montgomery and State of Ohio, haveinvented certain new and useful Improvements in Insulation-Racks; and 1do declare the following to bea full, clear, and exact'description ofthe invention, such as will` enable others skilled in the art to whichit appertains to make and use the same, reference being had to theaccompanying drawings, and to the figuresof reference marked thereon,which form a part of this specification.

My invention relates to an improved rack consisting of two or more bentsand designed to hold two or more sets of `split insulationsleeves. Theadvantages attending the use of said rack are several, and among whichthe following are enumerated: First, the insulation parts-namely, thesplit sleeves-are not lliable to breakage in this particular form ofrack or support, owing to the pressure between the parts of the rackbeing uniform or equalized, and, secondly,any number of wires or cablesmay be supported in said insulationsleeves in said rack by nesting asuitable number of racks in one assemblage, and various sizes of wiresor cables may be placed in the insulation-sleeves supported in saidracks. For example, the three-wire system requires positive and negativewires of equal sizes; but the center or neutral wire or cable may be ofa smaller size. These dierent sizes of wires may be held in asinglerack, and, further, wherever it is required any number of Wires orcables of different sizes may be secured in the same rack, althoughvarying in outside diameters.

Referring tothe accompanying drawings, Figure 1 shows a single rack of atwo-bent form. Fig. 2 is a single rack of a four-bent forni. Fig. 3 is anest of racks capable of supporting sixteen sets of split insulations.

vIn a detail description of the invention similar reference charactersindicate corresponding parts. y

Each single rack, as shown in Figs. 1 and 2, is constructed of two parts1 and 2, which have the desired number of bents or openings for therequisite number or sets of 'split insul are unitedl at lations 3,whichin the present case consist of porcelain. in other words, each rackis constructed of two parts, with their ends terminating in matchinglianges 1 and 2', and each rack isadapted to hold two or more sets ofsplit insulations 3, with openings of uniform or different diameters,and which may be constructed of any insulating material-for example,porcelain, glass, rubber, mica, &c. The parts 1 and 2 of the rackclosely surround the-insulation parts 3 and hold the same uniformly, sothat any danger of breakage is avoided. In other words, the parts of therack do not exert any undue pressure on any part ofthe insulations inexcess of the pressure on another part. rlhe openings in said racks areof'suficient diameters to prevent any lateral or `shifting movement ofthe two parts of said insulations.

their ends by bolts 4, or the said connection may be screws, nails,spikes, or any other convenient means,-

through the openings in the ends 1 and 2 .and secured in position on awall, ceiling, or

any other convenient place of attachment. In the event that a rackcontains openings for a' greater number than three sets of insulationsthe central portions of said rack are secured by means of a screw orbolt 5, as shown in Fig. 2, where the rack'is shown to consist offourbents. y

kReferring to Fig. 3, this shows an assemblage of racks'of somewhatmodified construction and consisting of live separable members 7, 7, 8,8, and 9, each having end flanges 10 and the whole consisting orconstituting a nest capable of supporting sixteen sets of splitinsulations 3. This entire assemblage of parts is united by vmeans ofstud-bolts 6, which are passed through openings in said end flanges. 10designates lock-nuts on said studbolts below said end iianges andserving to secure the parts firmly in position. This multiplied rack issupported in position by a suitable number of bolts 1l, which passthrough apertured bosses 12 on opposite sides of a capplate 13, thelatter being secured to the rack by the stud-bolts 6. It will be readilyseen that the idea of providing an insulated rack for supporting aplurality of sets lof insula- The two members of said rack said meanspassing- IOO tions may be multiplied to a greater extent by carrying outthe same idea of associating a desirable number of parts, no one ofwhich to contain less than two sets of insulations. Having described myinvention, 1 claim- As a new' article of manufacture, a rack forsupporting a plural number of sets of split iusulations, the sameconsisting of parts each .of which hassernicircular openings extendingin the body thereof' at right angles to the plane of said body so thatwhen said parts are united,

said openings uniformly inclose on all sides sets of split insulations,the ends ofsaid parts being extended in matching flanges for thereception of means by which said parts are united in the form of asingle rack, and the said rack as a wholefbeing supportable in anoperative position.

ln testimony whereof I aiix my signature in presence of two witnesses.

JOHN R. FLETCHER.

Witnesses: i R. J. MCGARTY, CAROLYN M. THEOBALD.

